Floodlight



March 21, 1933. K. A. SAWIN 1,902,587

FLOODLIGHT Filed Dec. 4, 1930 2 Sheets-Sheet 1 Light-gaging DeFlecIing Surface 38 \nvenTor.

KenneTh AScn/vin b zuw M&W

AT Tys.

March 21, 1933. K, $Aw|N 1,902,587

' FLOODLIGHT Filed Dec. 4, 1950 2 Sheets-Sheet 2 lhvenfor.

KenneTh .AISawin A'ffys.

Patented Mar. 21,1933

I UNITED. 'STA KENNETH A. SAWI1\T, OF WINTHROLP, MASSACHUSETTS, ASSIGNOR TO WHEELER 'REQ FLECTOB COMPANY," OF BOSTON, MASSACHUSETTS, A" CORPORATION OF MASSA- GHUSETTS rLooDLIGHr Application filed December 4, 1930. Serial No. 500,032,.

This invention relates to so-called flood lights. and has for one of its objects to providea novel flood light which is constructed so that it will not only give the flood light 5 effect but will also project a beam of light.

A further object of the invention is to provide, a flood light with a visor element which can. be adjusted about the axis .of the.

I the flood light which clamping means will permit the ready adjustmentof the vision. Another object of the invention is to provide an improved cover. glass which is mounted in the adjustable visor and which serves to close in and thus protect the reflecting surface of the reflector so that said surface will maintain its high reflecting value.

Other objectsof the invention are to improve generally flood lights in general particulars as will be more fully hereinafter set forth.

In order to give anunderstanding of the invention I have illustrated in the drawings a selected embodiment thereof which will now be described after which the (novel features willbe pointed out in the appended claims.

Fig. 1 is a side elevation of a flood light embodying my invention with parts broken out; 1

Fig. 2 is a detail of the clamping device for clamping the cover glass in'the adjustable visor;

Fig. 3 is a section on the line 3-3, Fig. 2;

Fig. 4c is a sectional view through the edge of the reflector and visor with my improved clamping device for clamping the visor to the reflector, said section being taken on substantially the line 4-4, Fig. 5; I

Fig. 5 is a top plan view of Fig; 4. The flood light herein shown is of the type which comprises a semi-circular reflector member 1 within which the electric light bulb 2 is located. The electric light bulb is shown as secured to a socket member 3 which in turn is located within and attached to a canopy',

TEs PATENT oFrlce the latter being screw threaded to a pipe 5 which not only supportsthe flood light but 7 also furnishesa, conduit by which the circuit wires are led to the socket member 3."

The main reflector member. 1 may be secured to the canopy 4 in any approved way. As herein shown said reflector memberhas attached thereto a supporting collar 6Which has the neck portion 7 thatis 'enteredin the open end of the canopy, said col'lar being suspended from the canopy by means of screws 8 which .are screw threaded through the lower end of the canopyand the inner ends of which engage in an exterior groove formed in the neck 7. 1

j The reflector member 1 is, of course, provided with an opening-9 through which the electric light bulb extends and inthe construction shown this opening andthe collar member 1 s0 that theniou'th 10 of theldeflector member through which-the light is projected is directed at an angle. tothesupporting pipe 5. I f

As stated above, one feature of my invention relates, to a novel construction by which they lightingflxture will produce not only a flood lightefl'ect but also will throw a beam of light.

eifect, this being accomplished by providing The interior surface' ll ofthe main reflector is? member 1 is constructed togive a flood light said surface, with a'refiectingl surface de'-..

signed to difluse the light more or less. Such light-diffusing reflecting surface may be secured by providing the surface coating of porcelain enamel. f

The body of the reflector 11 may conveniently belmade of steel or sheet metal 11 with a and the approximately semi-circular shape of the shell 1, together with th'e'porcelain enamel reflecting surface will produce a flood-lighting effect, it beingunderstood, of

course, that the electric light bulb 2 will be a high-p0wered.bulb. i

To produce the beam; of light I propose to equip the reflector member with a lightfocusing reflector element, which is situated V behind the bulb 2 in theaxial-line of the opening 10 and which is constructed to focus I 6 arev situated non-axially of thefreflector .7 l

. 19 thus forms in efiect-a peripheral flange 6X1 thelight into a beam and project theloeam.

through the opening 10. Such light-focusing reflector isindioated at 12 and it is of the proper shape to project a beam of light.

This light-focusing reflector 12 may be made of any suitable material and may-conveniently be made of metal which has the sur face 13 preparedso that it will havehigh light-reflecting qualities.

I This light-focusingreflector can conveniently be secured to the main reflectorv 1 in any appropriate way and as herein shown it is retained in position by a clamping bolt 14. The light-diffusing reflectormember 12 will, of course, have an opening 15 therein through which the neck of the electric'light bulb extends.

" Another featureof the invention relates to a novel visor construction for the reflector member l whlch 1s secured to the reflector member 1 for ad ustment about the axis of the opening 10 and which functions to shade the light source from any desired direction; This'visor element is indicated generally at 16 and 1t.1s annular in shape with a greater. width on one side as shown at 17 than on the other side as shown at 18 thereby giving the visor effect. This visor member .is' form-edof sheetinetal bent into the cylindrical shape and it is attached to a supporting ring 19-by means of screws 20. The ring tending radially from the inner end of the visor member. The reflector member '1 is provided' with a radially-extending peripheral 'flange 21 which mates'the flange '19 and jaws between which the flange .21 and ring 19 may be clamped. Each clamping member has a general 0 shape, one'arm of which constitutes' a clamping jaw 23 adapted'to engage the'flange 21'and the' other arm of whichcar-- I u left-relatlve to the end 32 thereby expanding said member. When the parts are in the y ries a clamping screw 24 that is adapted to engage the ring 19. Any desired number of these clamps may be employed and they'will be placed at appropriate distances around the supporting ring 19. When theclamp isv in its clamping position and the clamping screw 24 is tightened the ring 19 will be firmly clamped against the flange 21 thereby retain-- ing the visor in position. When the clampmg screws are loosened the visor can be 'readily turned about the axis of therefiector member into any desired position.

These clamping members 22'are shown as "pivotally connected. to the supporting ring 19. and for'this purpose each clamping mem ber has two ears25 extending laterally therefrom, which ears carry a pivot pin 26 that extends through "an ear 2-7 formed on the ring 19. The ears 25 are spaced apart further than the vertical dimension of the. ear.

27 so that when the screw 24 is backed off sufficiently' the corresponding clamping mem-' ber may be raised to an extent to permit the j aw member 23 to swing over the bead 28 at the edge of the flange '21; These clamping members 22 are thus pivotally connected to 1 the ring 19 and can be swung into aposition tion.

The visor element is in the form ofa split ring with the ends 31 and 32 overlapping each other anda self-locking clamping:.de-

vice is provided by which the overlapping ends are shifted relative to each other to contract the diameter of the visor member, said clamping member serving also to lock the visor in its'contracted relation.

This clamping member comprises a link member 33"which' is pivoted at one end as shown at 34 toan car 35 secured to one. end.

of the visor member, said link being'pivoted atthe other end to a locking member 36, which 'inturn is'pivoted to the other endof the visor member. The member 36 is shown as a U-shaped member, the two ends thereof being pivoted at 37 to ears 38rigid with the end 32 of the visor memberand the link 33 is also shown as a U-shaped member with the n 7 ends of the arms pivoted to the arms ofthe link 32 as shown at 39. V I

.Figs. 2'a-nd .3 show the locking member, in

its locking position withthe visor element contracted. When the, arm 36 is swung to the left Fig. 3 about its pivot 37 this movement will operate through the link 33 to shift the end 31 of the visor member to the operative position shown in Fig.3 the pivot point 39 is slightly below the pivot point 30 so that the device is a self-locking device;

The edge'of the visor member is stiffened by means of a wire40 which is enclosed in a bead 41 formed by rolling the edge of the visor back on itself.

The beaded portion of. the visor is out away at the end 32 so that at its end the termination 42 or the bead is at" a point in" the having by the'visor will present a stiif edge portion.-

The two overlapping parts 31, 32 of the;

.cover glass situated within the visor member and a lock for locking the visor member in its contracted condition,the cover glass being held in the visor by the contraction thereof.

2. In an electric light fixture, the combina tion with a reflector, of a visor member secured thereto, said visor member being in the form of a split ring and expansible and contractible radially, means for locking the visor member in its contracted condition, the edge of the visor member being rolled to present a bead, a stiflening wire within the bead, said wire projecting beyond one of the meeting ends of the split visor member and into the bead at the other end thereof.

3. A visor element for an electric light fix ture provided with a reflector having a radially-extending peripheral flange, said visor element having a radially-extending flange mating that of the reflector, C-shaped clamping members pivotally carried by the visor flange at a pointoutside of the reflector flange, and adapted to swing about an axis substantially parallel to that of the visor, the arms of the clamping member being adapted to embrace the mating flanges when the clamping member is in operative position,

v and a clamping screw carried by one of the arms of said clamping member and co-operating with the other arm to clamp the two flanges together.

4. A visor element for use in connection with a reflector of an electric light fixture extending flange mating that of the reflector,

clamping members pivoted to the visor flange at a point outside of the reflector flange and to turn about an axis parallel to the axis of the visor, each clamping memberhaving two opposed jaws adapted to receive the flanges between them when the clamp is in operative position, one of the jaws being movable toward and from the other jaw.

In testimony whereof, I have signed my name to this specification.

KENNETH A. SAWIN,

radially-extending peripheral flange, said visor element having'a radially- 

